On the Buy Now page, scroll down to the Renewal box. Enter the email address you used for the original purchase. The discount should be relfected in the rates shown. If the top box is greyed out, all you need to do is download a new key, using the link on that page. If none of that works, you will need to use the Contact Us link on that website (not the forum one) and select Business Issues from the dropdown.
[QUOTE=think1;26511]I'd like to upgrade to a lifetime license, but when will this reduced rate start?
"DVDFab Gold+DVD to Mobile: If you choose, you may upgrade to the full v6 "DVD to DVD" option with a term or lifetime license at a special reduced rate. (coming soon)"[/QUOTE]